What a rack does
A rack supports concealed tiles so you can see them without displaying the faces to other players. The angle and width matter: an uncomfortable rack can make tile recognition harder than it needs to be.
Check that the rack fits the dimensions of your tile set. Not every accessory marketed as a Mahjong rack is designed for the same tile size or playing style.
What a pusher does
A pusher can help move tile walls during setup or play. Some pushers are integrated into racks and others attach separately. People have different preferences about which is easiest to handle.
Examine whether it moves smoothly, feels secure and seems durable. Rough edges or flimsy connections can make the accessory more frustrating than helpful.
Wood, acrylic and other materials
Wooden racks may provide a traditional look and a comfortable weight. Acrylic options are often modern-looking and can be easy to clean. Neither material is automatically better; consider stability and how frequently you travel.
If you carry equipment from home to home, the added weight of accessories may matter more than it does for a set that stays in one place.
A simple shopping checklist
Confirm the number of racks included, exact dimensions, whether pushers are provided and whether the item is sold as an accessory or part of a complete set. Read the product specifications rather than judging scale from the photos.
If your group has accessibility needs, try a rack in person if possible. Comfortable viewing and handling are the most useful features.
This is independent educational information, not an official rulebook. For definitive American Mah Jongg play, consult your current official annual card and the rules used by your group.